$A$ particle shows a distance-time curve as shown in the figure. The maximum instantaneous velocity of the particle is around the point:

The acceleration-time graph of a particle moving along a straight line is shown. At what time does the particle acquire its initial velocity? (in $s$)

The graph between the displacement $x$ and time $t$ for a particle moving in a straight line is shown in the figure. Determine the sign of the acceleration of the particle for the intervals $OA$,$AB$,$BC$,and $CD$ respectively.

The acceleration-time graph of a body is shown. The corresponding velocity-time graph of the same body is

Draw the $x-t$ graphs which represent positive,negative,and zero velocity.

Which of the following speed-time $(v-t)$ graphs is physically not possible?